Skywall Translucent Systems of Terrell, Texas, has announced the availability of SmoothSeal details for skylight sills and purlins. SmoothSeal is designed for use on Advanced Translucent Skylights™ where the rafter bay spacing is 5-feet or less on center, and the slope is 30 degrees or less.

According to the company, SmoothSeal, which features a special backer rod along with a silicone sealant, is an effective weather seal, and because there is no purlin cap, water does not pond above the cap.